Cluster commands and APIs

i5/OS™ cluster resource services provides a set of control language (CL) commands, application program interfaces (APIs) and facilities that can be used by iSeries™ application providers or customers to enhance their application availability.

You can write your own custom application to configure and manage your cluster by utilizing cluster control language (CL) commands and application programming interfaces (APIs). These commands and APIs take advantage of the technology provided by cluster resource services provided as a part of i5/OS.

QUSRTOOL
Cluster resource services also provides a set of example commands in the QUSRTOOL library that map to the APIs that have no supported command interface. The QUSRTOOL commands might be useful in some environments. For example, you can change heartbeating or send information around the cluster. See the member TCSTINFO in the file QUSRTOOL/QATTINFO for more information about these example commands. An example application CRG exit program is also included in the QUSRTOOL library. The sample source code can be used as the basis for writing an exit program. Sample source, TCSTDTAEXT, in file QATTSYSC contains a source for a program to create the QCSTHAAPPI and QCSTHAAPP0 dataareas, and QACSTOSDS (object specifier) file.
Related tasks
Add a node to a cluster